| Summary | A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. |
|---|---|
| Publication Date | Oct. 6, 2020, 11:15 p.m. |
| Registration Date | Jan. 26, 2021, 11:55 a.m. |
| Last Update | Nov. 21, 2024, 2:18 p.m. |
| CVSS3.1 : HIGH | |
| スコア | 7.2 |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 高 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |
| CVSS2.0 : HIGH | |
| Score | 7.5 |
|---|---|
| Vector | AV:N/AC:M/Au:S/C:P/I:P/A:C |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 中 |
| 攻撃前の認証要否(Au) | 単一 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 高 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* | |||||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 2.6.29 | 4.4.238 | |||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.5 | 4.9.238 | |||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.10 | 4.14.200 | |||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.15 | 4.19.148 | |||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.20 | 5.4.68 | |||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.5 | 5.8.12 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | |||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | |||||
| Configuration6 | or higher | or less | more than | less than | |
| cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | ||||
| Configuration7 | or higher | or less | more than | less than | |
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12533:*:*:*:vsphere:*:* | |||||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12658:*:*:*:vsphere:*:* | |||||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12859:*:*:*:vsphere:*:* | |||||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13170:*:*:*:vsphere:*:* | |||||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13586:*:*:*:vsphere:*:* | |||||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13861:*:*:*:vsphere:*:* | |||||
| Title | Linux Kernel における入力確認に関する脆弱性 |
|---|---|
| Summary | Linux Kernel には、入力確認に関する脆弱性が存在します。 |
| Possible impacts | 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | Sept. 10, 2020, midnight |
| Registration Date | April 28, 2021, 11:39 a.m. |
| Last Update | April 28, 2021, 11:39 a.m. |
| レッドハット |
| Red Hat Enterprise Linux |
| openSUSE project |
| openSUSE Leap |
| Linux |
| Linux Kernel 5.9-rc7 未満 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2021年04月28日] 掲載 |
April 28, 2021, 11:39 a.m. |